Frame of gradually released tension machine

ABSTRACT

A frame of gradually released tension machine, which is a kind of tool for binding by hand and the main part of machine; at the edge of the frame there are a locking slot and a loosening slot; a releasing slot is near the said loosening slot; the frame also has a slow-released device comprising the releasing slot and a sliding gear which combines with the ratchet of the tension machine and is turnable at the side of the releasing slot, and the acme of the sliding gear is up or even with the ratchet. The frame is simple and can be easily manufactured. Choosing this kind of frame to assemble the tension machine, the releasing effect is much better, and greatly improves its using reliability of safety. It is an ideal part for updating tension machines.

FIELD OF THE INVENTION

[0001] This invention relates to a kind of tool for binding by hand, specifically to a frame which belongs to the main part of the gradually released tension machine. The tension machine which constitutes the frame is especially suitable for binding cargos firmly for transporting and shipment so as to prevent the sudden falling down of cargos during operation.

BACKGROUND OF THE INVENTION

[0002] Chinese Patent Application No. 01274274.0, namely Twice Released Tension Machine provides not only tense function but also gradually released function, but its frame is not perfect yet.

SUMMARY OF THE INVENTION

[0003] The object of the invention is to provide a frame of gradually released tension machine with reasonable and perfect design. Setting it on the gradually released tension machine, the machine have common function as well as slowly released function, and the released effect is much better, which can guarantee safety and reliable for discharging and using.

[0004] To achieve the said object, the invention provides a frame of gradually released tension machine. At the edge of the frame there are a locking slot and a loosening slot. A releasing slot is near the said loosening slot. The frame also has a slow-released device comprising the releasing slot and a sliding gear which combines with the ratchet of the tension machine and is turnable at the side of the releasing slot, and the acme of the sliding gear is up or even with the ratchet.

[0005] Comparing to the counterpart in prior art, the frame according to the invention has advantages as follows: due to adding a slow-released device comprising a slideway with arc shape as the releasing slot at the head of the frame, and a sliding gear which combines with the ratchet and is turnable at the side of the releasing slot, can release step by step. Rock the baffle of the tension machine back and forth some times in the releasing slot, the ratchet will slacken tooth by tooth, subsequently the binding strip will release a length of tooth pitch little by little, and the binding strip will slacken slowly, when the tensile force of the binding strip is smaller, again proceed the second releasing. Fix the baffle in the loosening slot, the ratchet will be in the complete released condition, safely slackening the binding strip, cargos can be untied. Adopting releasing step by step and the tensile force of the binding strip is released gradually, it can prevent sudden loosening, sloping and collapsing of cargos that hurt persons and damage cargos. The machine is simple and can be easily manufactured, only adding a simple part, namely a sliding gear. Choosing this kind of frame to assemble the tension machine, the releasing effect is much better, and greatly improves its using reliability of safety. It is an ideal part for updating tension machines.

BRIEF DESCRIPTION OF THE DRAWING

[0006]FIG. 1 is a schematic drawing of the structure of the invention.

[0007]FIG. 2 is a using state drawing of the invention.

[0008]FIG. 3a to FIG. 3e are schematic drawings of the releasing process.

DETAILED DESCRIPTION OF THE INVENTION

[0009] The invention may best be understood by referring to the following detailed description and accompanying drawings which illustrate the invention.

[0010] Referring to FIG. 1 to FIG. 3e, the frame 8 whose middle section is U-shaped and both ends are open without bottom. There are a big through hole, a small through hole and a strip-shaped slideway on both sides. At the edge of the head of one open end, there is a loosening slot 1, and a releasing slot 3 is beside it, as well as there are a through hole 6 and an arc fixing slot 2 under it. Corresponding to the loosening slot 1, there is a locking slot 7.

[0011] The sliding gear 4, a through hole is in its middle, and one end is arc combined with the ratchet 10, the other is creased.

[0012] The releasing slot 3, which is an arc slideway at the edge of the head of the frame 8. Its arc direction is the same as that of the ratchet 10, and their shapes are matching or different, the length of arc is twice to three times as that of the tooth of the ratchet 10.

[0013] Using the rivet 5 to fix the sliding gear 4 in the through hole 6 under the releasing slot 3 at the edge of the head of the frame 8, and simultaneously let one creasing end of the sliding gear 4 cut in the fixing slot 2 on the frame 8. The sliding gear 4 can turn round the rivet 5 and combine with the ratchet 10, the acme of the sliding gear 4 is up or even with the ratchet 10.

[0014] Utilizing the two semiaxes 9 to connect the frame 8 possessed the releasing device with the ratchet 10 and the handle 12 as an integer, then assemble it with other parts as the gradually released tension machine.

[0015] If you want to discharge cargos, first, loosen the binding of cargos, and pull the handle 12 of the tension machine to pull out the baffle 11 from the locking slot 7, then turn the handle 12 to put the baffle 11 in the releasing slot 3, and go on pushing the handle 12, the baffle 11 slides in the anticlockwise direction along the releasing slot 3 and slides over the peak acme of the sliding gear 4, as show in FIG. 3a. Continue pushing the handle 12 to make the baffle 11 slide in the anticlockwise direction till it reaches the bottom of the releasing slot 3, as show in FIG. 3b. The ratchet 10 turns in the clockwise direction under the action of the pulling force of the binding strip, its teeth push the baffle 11 to slide in the clockwise direction along the releasing slot 3 till coming into contact with the sliding gear 4 and embedding between the teeth of the ratchet 10 and the sliding gear 4, as show in FIG. 3c. Keeping on pulling the handle 12 in the clockwise direction, the baffle 11 pushes the sliding gear 4 to get over it along the acme of it and slides into the releasing slot 3 till it comes up against the slot side and is withstood, the binding strip is loosened in a length of tooth pitch, as show in FIG. 3d.

[0016] Repeating the above operation, the ratchet 10 turns backwards in the clockwise direction tooth by tooth, the binding strip is also slackened. If the baffle 11 is cut in the loosening slot 1, the strip is completely loosened. Pull the binding strip, the ratchet 10 turns together with the two semiaxes 9, and the binding strip comes out from the two semiaxes 9, cargos are untied, as show in FIG. 3e. 

I claim:
 1. A frame of gradually released tension machine, at the edge of the frame (8), there are a locking slot (7) and a loosening slot (1), wherein a releasing slot (3) is near the said loosening slot (1), the frame (8) also has a slow-released device comprising the releasing slot (3) and a sliding gear (4) which combines with the ratchet (10) of the tension machine and is turnable at the side of the releasing slot (3), and the acme of the sliding gear (4) is up or even with the ratchet (10).
 2. Frame according to claim 1, characterised in that the frame (8) whose middle section is -shaped and both ends are open without bottom; there are a big through hole, a small through hole and a strip-shaped slideway on both sides; at the edge of the head of one open end, there is a loosening slot (1), and a releasing slot (3) is beside it, as well as there are a through hole (6) and an arc fixing slot (2) under it; corresponding to the loosening slot (1), there is a locking slot (7); the sliding gear (4), a through hole is in its middle, and one end is arc combined with the ratchet (10), the other is creased; the releasing slot (3), which is an arc slideway at the edge of the head of the frame (8); its arc direction is the same as that of the ratchet (10), and their shapes are matching or different, the length of arc is twice to three times as that of the tooth of the ratchet (10).
 3. Frame according to claim 1, characterised in that the sliding gear (4) is fixed by the rivet (5) in the through hole (6) under the releasing slot (3) at the edge of the head of the frame (8), and simultaneously let one creasing end of the sliding gear (4) cut in the fixing slot (2) on the frame (8); the sliding gear (4) can turn round the rivet (5). 